SQL-DATABASE ERROR

Database error in WoltLab Burning Board: Link-ID == false, connect failed
mysql error: The server requested authentication method unknown to the client
mysql error number: 2054
Date: 19.04.2024 @ 06:40
Script: /board/board.php?boardid=3&sid=626741f597b345b7f6fbe54e521fec09
Referer: